Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0b59e6349e4a8ee…

MALICIOUS

PDF

71.8 KB Created: 2021-04-08 00:49:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9ff207de570c17237061dfe74e767774 SHA-1: 76536541b0d656ab4266d66e5fade4de08fc475c SHA-256: a0b59e6349e4a8ee49331ab7bbf772a18481c5428385bf6faabeab2277935f43
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, one of which is directly linked to a phishing lure related to 'Fahrenheit 451 analysis worksheet'. The presence of these URLs suggests the document is designed to redirect users to malicious sites, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://dafemum.ru/123?utm_term=fahrenheit+451+analysis+worksheet
    • https://cdn.sqhk.co/bijozugetav/Lyjdu84/best_rally_cars_under_5k.pdf
    • http://drovazvenigorod.ru/62966146646lwiws.pdf
    • http://ranking-se.com/92799599070k0s1w.pdf
    • https://cdn.sqhk.co/mobapesemano/Njhhijj/bravos_tulsa_menu.pdf
    • http://lovelid.xyz/ximuxepokuleruxo8ra44.pdf
    • https://cdn.sqhk.co/zujijivopuju/j9hbyjh/lozabuxaju.pdf
    • http://finoginujowiwi.mypressonline.com/ilgin_bilgiler_ansiklopedisi.pdf
    • http://tricitysikhs.com/kinds_of_weather_worksheet_for_grade_3buisk.pdf
    • http://lunesygets.xyz/944665920978ty0x.pdf
    • https://cdn.sqhk.co/lilovenodi/e0LEsvx/kobefebalikebabuxatibu.pdf
    • http://misifebofol.mywebcommunity.org/jazz_piano_music_theory.pdf
    • http://wipunemobak.mygamesonline.org/94944910274.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/lixuzo/bijiji.pdf
    • https://s3.amazonaws.com/nazekisigiduz/job_hunting_listening_answers_test_5.pdf
    • http://nufiwimuzobo.onlinewebshop.net/gamimejojetasapul.pdf
    • https://s3.amazonaws.com/geradi/what_is_hermeneutics_in_the_bible.pdf
    • https://uploads.strikinglycdn.com/files/d723247c-f672-4783-bee4-621b77ff81dc/descargar_libro_aprendizajes_clave_para_la_educacin_integral_preescolar.pdf
    • https://uploads.strikinglycdn.com/files/835cc7e9-9fdc-44db-81e6-6e46d0bcff9e/can_i_check_my_covid_test_results_online.pdf
    • https://uploads.strikinglycdn.com/files/3132c3e3-74e5-4d04-ab31-37f42944e099/briggs_and_stratton_repair_parts.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000daea.bin
fe03e3ebcfbdb65f9b79597259c6ae9c5260460661a0ef22ee7a13075a5ee558
pdf-font-stream PDF embedded font (sfnt) at offset 0xDAEA 5248 bytes
font_01_sfnt_off0000ecea.bin
95818cfdee4bc3e174d49b2137c1d3a1c9af9ba34f12bb3709a50a25c1bb0cb5
pdf-font-stream PDF embedded font (sfnt) at offset 0xECEA 11020 bytes